Mold.



` c. D'. MCAARTHUR.

MOLD. y l. APPLICATION IIH'ID I'IZBJ. 1910.

` Patented sept. 27, 1910.v

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` C. n'. MGARTHUR.

MOLD. v v jurmcnox rum) um, 1910K. f n l f Patented Sept. 27, .1910.

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`4 along and provide with raising'and lowers tachably mounted upon the upper edges of the side sections, and a truck on the track for carrying the lcolla sed arch section thereing `means for the arch sections. Y

2. I ncombination in a U shapedv mold, a beam extendingy across the bottom of the forni, alovfer side section at each end of theV beam, detachable connections between the ends of the beam and the lower portions of the side sections, detachable' diagonal braces between the beam and the side/sections, a

- track extending vacrossthe beam intermedi-v atethe braces. a collapsible arch section def tachably secured to the tops of the side sections, .and means carried by the truck for collapsing the arch sections. u

3. In'conibination in a U shaped mold, u

pair yof lower side sections, a series of trans#h vverse beams extendlngacross the bottom of the mold and adapted to maintain the lowerV 'edges of theside lsections spaced apart a fixed distance, detachabley bracing means from thebeams to the side sections, a track -mounted on the beams, a collapsible archv section detacliably mounted upon the upper edges of the side sections, and a truck on the track carrying collapsing means for the arch l section.

my name in the presence of the two K y' .Y 

